Alternative Cam Sensor Adjustment Procedure
Scott Walsh
Cam Sensor Adjustment Procedure
NOTES: This procedure is easier if all sensors are disconnected. There are several sensors in the area and removing the wiring harnesses make your job easier. The intercooler does not have to be removed but removal of it and your serpentine belt will make rotating the engine easier. You must also remove the up pipe and intake hose between the MASS air sensor and the turbo.

1. Measure on a piece of masking tape and mark it at 1.45". Apply the tape to the left side of the vibration damper at the TDC timing mark.
2. Rotate engine to TDC, compression stroke.
3. Install the cam sensor. Cam sensor “window” will face towards the drivers side of the car. You may have to reposition the notch in the oil pump drive to mate with the cam sensor. Remember the gear drive is a helical cut, you will have to rotate the sensor counterclockwise so it will end up in the desired position. (There is not an exact position for the sensor as timing is determined by the adjusting procedure.)
4. Install cam sensor hold down bolt, but do not tighten.
5. Re-attach all sensor connections, and replace cam sensor cap.
6. Turn ignition key to “ON” position. Do not crank engine. Using a voltmeter, probe the “B” wire connection on the harness to the cam sensor.
7. Rotate the sensor clockwise. The reading on your voltmeter should be approximately 7.5 volts.
8. Rotate the sensor counterclockwise. As you rotate the sensor, the voltage will drop to “0". Secure the hold down bolt at this location.
9. Re-connect all sensors
10. Install serpentine belt, intercooler, up pipe and intake hose.
11. Ensuring you have checked and topped all fluid levels, go ahead and start the engine.
12. If you have followed the procedure properly the engine must run.
13. No further adjustment is necessary, your cam sensor is adjusted properly

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